136557349 has 2 divisors, whose sum is σ = 136557350. Its totient is φ = 136557348.

The previous prime is 136557331. The next prime is 136557367. The reversal of 136557349 is 943755631.

It is a balanced prime because it is at equal distance from previous prime (136557331) and next prime (136557367).

It can be written as a sum of positive squares in only one way, i.e., 136188900 + 368449 = 11670^2 + 607^2 .

It is a cyclic number.

It is not a de Polignac number, because 136557349 - 2⁷ = 136557221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136557649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68278674 + 68278675.

It is an arithmetic number, because the mean of its divisors is an integer number (68278675).

Almost surely, 2^136557349 is an apocalyptic number.

It is an amenable number.

136557349 is a deficient number, since it is larger than the sum of its proper divisors (1).

136557349 is an equidigital number, since it uses as much as digits as its factorization.

136557349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 340200, while the sum is 43.

The square root of 136557349 is about 11685.7754984425. The cubic root of 136557349 is about 514.9578612583.

The spelling of 136557349 in words is "one hundred thirty-six million, five hundred fifty-seven thousand, three hundred forty-nine".